While some of the attractions are relatively close to each other and can be accessed by foot or bike, renting a car or using a ride-share app may be more efficient. Renting a car can cost around $30-$50 for a day, while ride-share apps tend to be reasonably priced. Also consider taking public transportation where possible, like the Gold Line light rail to reach Arcadia and Santa Anita Park.
If you have some extra time, consider visiting the Huntington Library, Art Collections, and Botanical Gardens. Another idea is to explore the local cuisine at eateries like Daikokuya Arcadia, where you'll find delicious Japanese ramen.
The closest airport to Arcadia is the Bob Hope Airport (BUR) in Burbank, which is about 18 miles away. The larger Los Angeles International Airport (LAX) is about 35 miles away.